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(WN) Southwest Airlines 551 On-Time Performance Rating

Date Range:

01-Aug-2025 to 30-Sep-2025

(LAS) Las Vegas Harry Reid International Airport

Las Vegas, NV, US

(ONT) Ontario International Airport

Ontario, CA, US

On-Time Performance Chart

(using rounded numbers)
On-Time
1
50%
Late
1
50%
Very Late
0
0%
Excessive
0
0%
Cancelled
0
0%
Diverted
0
0%

Delay Statistics

(Aggregate Arrival Delay Statistics for this Flight)

Total Flights Observed
2
Total Delays ( > 1 min )
2
Codeshares
0
Average Delay (min.)
18
Standard Deviation
12.7
Min
9
Max
27

WN 551 On-Time Performance Details

Overall Rating
2.1 of 5
Average
Percentage On-Time 50%
Average Delay Time 18 min
FlightStats Rating is a merit measurement considering both on-time performance and delay severity. The score, 2.1 shows that this flight has on-time performance characteristics better than 41% of all other flights in the FlightStats database.
On-Time Performance Rating
0.9 of 5
Poor
Percentage On-Time 50%
This flight has an on-time performance of 50%. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight is on-time more often than 18% of other flights.
Delay Performance
3.3 of 5
Average
Average Delay Time 18 min
This flight has an average delay of 18 minutes with a standard deviation of 12.7 minutes. Statistically, when taking into consideration sample size, standard deviation, and mean, this flight has delay performance characteristics better than 66% of other flights.

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